*{
	margin:0;
	padding:0;
}
body{
	padding:20px;
}
#container{
	position: relative;
	width: 600px;
	height: 450px;
	overflow: hidden;
	border:1px solid silver;
	border-radius: 5px;
}
#imgs{
	position: absolute;
	left:-600px;
	width: 3000px;
	height: 450px
}
img{
	width: 600px;
	height: 450px;
	float: left;
}
#button{
	height: 16px;
	position:absolute;
	bottom:20px;
	left:246px;
}
#button div{
	width: 16px;
	height: 16px;
	margin: 0 16px;
	background: #a077a0;
	border-radius:8px;
	float: left;
	cursor: pointer;
}

.arrow{
	font-size: 35px;
	color: #a077a0;
	font-weight: bold;
	top: 200px;
	width: 50px;
	height: 50px;
	position: absolute;
	background: #d2d2d2;
	text-align: center;
	text-decoration: none;
	line-height: 50px;
	display: none;
	border-radius: 25px;
}
#container:hover .arrow{
	display: block;
}
.arrow:hover{
	color: #d2d2d2;
	background:#7a7e8a;
}
#left{
	left: 20px;
}
#right{
	right: 20px;
}
#button .on{
	width: 32px;
	margin:0 8px;
	border-radius: 8px;

}